Coated-core caster and truck wheel



July 13,1926. 1,592,043 W. H. NOELTING CQATED CORE CSTER AND TRUCK WHEELzFiled Dec, l, 1925 INVENTORA WMU/sw /ff /Yofz 774/6.

ATTORNEYS.

Patented JulyV 13, 1926.

razen W'ILLIAM -I-. NOELTNG, OF EVANSVLLE, INDIANA, ASSIGNOR TOFAUL'ILESS CASTER COMPANY, 0F EVANSVILLE, INDEANA, A COEPORATON.

COATED-CORE CASTER AND TRUCK "WHEEL,

Application filed December 1, 1925. Serial No. 72,613.

rlhis invention relates to 'caster wheels.

The chief object of the invention 1s to provide a non-marring coating toa caster wheel core or-body such that the resultant wheel constructionwill have sufficient crushing strength to carry the load and will havesufcient cushioning action to prevent seating of the wheel into thefloor with the resultant marring thereof, and which will be furtherprotective by having the sides of the 4wheel similarly protected toprevent marring and scratching of furniture legs and the like which thecaster wheel may accidentally contact.

The chief feature of the invention consists in the formation of a casterwheel having a covered tread and side faces. v

Another feature of the invention consists in the formation of said sideand tread ycoverings as a continuation of each other.

A third feature of the invention consists in the particular anchorage ofthe cover material to the wheel body or core.

rlhe full nature of the invention will be understood from theaccompanying drawings and the following` description and claims.

In the drawings, Fig. 1 is a side elevational view of the protectedVcaster wheel. Fig. 2 is a central sectional view of the same. Fig. 3f isa central sectional view of a modified Vform of the invention.

1n the drawings 10 indicates a core body having a crowned periphery 11and a pair of side faces 12. The side faces 12 herein are shownparallel, but Vit is to be understood that these faces preferably havethe same central angle or dishing, said angle in this instance being 180degrees, and said side faces are oppositely positioned with respect toeach other which condition, of course, applies equally to the median or180 degree central angle positioning.

Each side face has a plurality of concentric and coaxial anchoragegrooves 13 formed therein. These grooves are similar and each annularside wall thereof is inclined to the face as at 14, thus forming a wedgeshaped groove of dove tail section. The grooves in said side faces are.so arranged that they are oppositely positioned and therefore are allcoaxial and opposite grooves in the opposite faces are at substantiallythe same radial distance from the center of the wheel.

The annular peripheral surface 11 which supports the tread is shownprovided with a plurality of coaxial grooves 15 having the inclined sidewalls 16 s0 that the grooves also are not only wedge shaped but are alsodove tail in section. A plurality of said grooves are arovided asindicated and these are symmetrically arranged with reference to themedian plane of the wheel.

The particular protective covering consists of a rubber or rubber-liketread portion 17 which can be suitably molded into any desiredconformation and integral therewith are the side walls 18, andprojecting inwardly from said side walls and said tread portion 18 and17 respectively, are annular lreying portions integral therewith andseatable in the wedge shaped dove tail, sectioned grooves for anchoringthe entire integral cover to the wheel body or core 10.

rlhe wheel core 10 has the central axial opening 19 with reduced corners2() at each end and the cover material is extended inwardly as at 21 ofsaid corners to further immediately anchoithe central portion of eachside face. The resultant construction, therefore, is in its specificform a wooden cored caster wheel having its entire side and treadsurfaces fully protected by an integral cushioning material such asrubber.

ln F ig. 3 there is illustrated a central sectional view of a modifiedform of the invention. 1n this figure the core 10 has the centralaperture 19 and mounted in said central aperture is a metallic bushing100 having the outwardly flared ends 101 which form the flared openings20. The remaining parts of the invention are substantially asillustrated and described with reference to the previous form of theinvention, and herein the inturned portions 21 of the coating aresimilarly inturnedand seat in the flared portion 20 of the metallicbushing 100.

The invention claimed is:

1. A caster wheel comprising a core having a pair of side surfacesconnected by an annular peripheral tread supporting surface, each ofsaid surfaces having a plurality of coaxially arranged locking groovestherein, and an integral moldable covering extending over substantiallythe entire peripheral and side surfaces and filling said grooves foranchoring said covering to the core.

2. A device as defined by claim 1 characterized by the locking grooveseach having an inclined vvall leading from the adjacent covering surfaceto forni av Wedge section groove.

3. A device as defined by claini l characterized by the locking grooveseach having a pair of inclined Walls leading from the adjacent surfaceto 'forni a dove tail sectioned groove.

`l. A device as defined by claiin l characterized by the sides of thevvheel core having the saine central vangle and symmetrically arrangedvvith respect to a inedian plane of the ivheel, and the grooves in saidside surfaces being eoaxially aligned and opposite grooves in oppositefaces having substantially' the saine radius.

5. A device as detined by claiin l characterized by the peripheralsurface or core being crovvned and the locking grooves therein beingoffset laterally vvih respect to each other and therefore concentricvvith each other, and coaxial and arranged synietrically with respect tothe median planeet the wheel.

6. A device as defined by claiin 1 characterized by the peripheralsurface or core being crovvned and the locking grooves therein beingofl'set laterally with respect to each other and therefore concentricvv'ith each other. and coaxial and arranged syinmetrically vvith respectto the median plane of the wheel, said core being further characterizedby the sides of the Wheel core ha"- ing the saine central angle andsymmetrically arranged with respect to a nicdian plane of the wheel7 andthe grooves in said side surfaces being coaxially aligned and oppositegrooves in opposite faces having substantially the saine radius.

7. A caster wheel comprising ay fibrous core having pair of sidesurfaces connected by an .annular peripheral tread supporting surface,saidv core having a central axle opening vvith flared ends, and anintegral inoldable coveringextending over the entire side and annularsurface and having edge portions extending invvardly into the flaredportion for .anchoring the ends oi the cover.

S. A easter ivheelconiprising a fibrous core having a pair of sidesurfaces connected by annular peripheral tread supporting suriace.y saidcore having a central yaxle opening. a metallic bushing secured theretovvith flared ends, and an integral inoldable coveringr extending` overthe entire side .and annular surfaces-mid having edge portions extendinginwardly into the `flared portions for .anchoring the-ends ot thecovering.

In witness whereof. l have hereunto al fixed iny signature.

VILLIAM H. NOELTING.

